akkoma/lib/pleroma/uploaders/s3.ex

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# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Uploaders.S3 do
@behaviour Pleroma.Uploaders.Uploader
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require Logger
# The file name is re-encoded with S3's constraints here to comply with previous
# links with less strict filenames
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def get_file(file) do
config = Pleroma.Config.get([__MODULE__])
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bucket = Keyword.fetch!(config, :bucket)
bucket_with_namespace =
cond do
truncated_namespace = Keyword.get(config, :truncated_namespace) ->
truncated_namespace
namespace = Keyword.get(config, :bucket_namespace) ->
namespace <> ":" <> bucket
true ->
bucket
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end
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{:ok,
{:url,
Path.join([
Keyword.fetch!(config, :public_endpoint),
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bucket_with_namespace,
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strict_encode(URI.decode(file))
])}}
end
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def put_file(%Pleroma.Upload{} = upload) do
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config = Pleroma.Config.get([__MODULE__])
bucket = Keyword.get(config, :bucket)
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{:ok, file_data} = File.read(upload.tempfile)
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s3_name = strict_encode(upload.path)
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op =
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ExAws.S3.put_object(bucket, s3_name, file_data, [
{:acl, :public_read},
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{:content_type, upload.content_type}
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])
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case ExAws.request(op) do
{:ok, _} ->
{:ok, {:file, s3_name}}
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error ->
Logger.error("#{__MODULE__}: #{inspect(error)}")
{:error, "S3 Upload failed"}
end
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end
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@regex Regex.compile!("[^0-9a-zA-Z!.*/'()_-]")
def strict_encode(name) do
String.replace(name, @regex, "-")
end
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end